Lenovo AIO 700 Series Hardware Maintenance Manual

Type
Hardware Maintenance Manual

This manual is also suitable for

ideacentreAll-In-One700Hardware
MaintenanceManual
MachineTypes:F0BE[700–24ISH/EnergyStar]/F0BG
[700–24AGR/EnergyStar]/F0BD[700-27ISH/EnergyStar]
ideacentreAll-In-One700
HardwareMaintenanceManual
MachineTypes:F0BE[700–24ISH/EnergyStar]/F0BG
[700–24AGR/EnergyStar]/F0BD[700-27ISH/EnergyStar]
FirstEdition(July2015)20th
©CopyrightLenovo2015.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwarearedeliveredpursuantaGeneralServices
Administration“GSAcontract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.
GS-35F-05925
Contents
Chapter1.Aboutthismanual.....1
ImportantSafetyInformation.........1
Chapter2.Safetyinformation.....3
Generalsafety...............3
Electricalsafety..............3
Safetyinspectionguide...........5
Handlingelectrostaticdischarge-sensitive
devices.................5
Groundingrequirements...........6
Safetynotices...............6
Chapter3.Generalinformation....9
Specifications...............9
Chapter4.GeneralCheckout.....11
Chapter5.UsingtheSetupUtility...13
StartingtheLenovoBIOSSetupUtilityprogram.13
Viewingandchangingsettings........13
Usingpasswords..............13
Enablingordisablingadevice........15
Selectingastartupdevice..........16
ExitingtheLenovoBIOSSetupUtilityprogram..17
Chapter6.Symptom-to-FRUIndex..19
Harddiskdrivebooterror..........19
PowerSupplyProblems...........19
POSTerrorcodes.............20
Undeterminedproblems...........20
Chapter7.Hardwarecomponents..21
Chapter8.Replacinghardware....25
Generalinformation.............25
Replacingthekeyboardandmouse......26
Replacingthepowercord..........26
Removingthestandbase..........27
Removingthefootcover...........28
Replacingthememorymodule........29
Replacingtheharddiskdrive.........30
Replacingtheopticaldrive..........31
Removingthestandholder..........33
Removingthemiddlecover.........33
Replacingtheconverterboard........35
RemovingtheEMIcover...........36
ReplacingtheWi-Ficard...........37
Replacingtheheat-sink...........38
ReplacinganIntelCPU...........39
ReplacinganAMDCPU...........41
Replacingthesystemfan..........44
Replacingthespeakersystem........45
Replacingthepowerswitchboard.......46
Replacingthemotherboard..........47
Removingthereardeco...........49
Replacingthecamera............50
ReplacingtheLCDpanelmodule.......51
Chapter9.FRUlists..........55
Chapter10.Generalinformation...71
AdditionalServiceInformation........71
©CopyrightLenovo2015
iii
ivideacentreAll-In-One700HardwareMaintenanceManual
Chapter1.Aboutthismanual
ThismanualcontainsserviceandreferenceinformationforLenovoAIO700–24ISHandAIO700–25AGR
computerslistedonthecover.ItisintendedonlyfortrainedservicerswhoarefamiliarwithLenovocomputer
products.
BeforeservicingaLenovoproduct,besuretoreadtheSafetyInformation.
ImportantSafetyInformation
BesuretoreadallCAUTIONandDANGERsectionsinthismanualbeforefollowinganyoftheinstructions.
VeuillezliretouteslesconsignesdetypeDANGERetATTENTIONduprésentdocumentavantd’exécuter
lesinstructions.
LesenSieunbedingtalleHinweisevomTypACHTUNG”oder“VORSICHT”indieserDokumentation,bevor
SieirgendwelcheVorgängedurchführen
LeggereleistruzioniintrodottedaATTENZIONEePERICOLOpresentinelmanualeprimadieseguireuna
qualsiasidelleistruzioni
Certifique-sedelertodasasinstruçõesdecuidadoeperigonestemanualantesdeexecutarqualquer
umadasinstruções
Esimportantequeleatodaslasdeclaracionesdeprecauciónydepeligrodeestemanualantesdeseguir
lasinstrucciones.
©CopyrightLenovo2015
1
2ideacentreAll-In-One700HardwareMaintenanceManual
Chapter2.Safetyinformation
Thischaptercontainsthesafetyinformationthatyouneedtobefamiliarwithbeforeservicingacomputer.
Generalsafety
Followtheserulestoensuregeneralsafety:
Keeptheareasaroundthecomputerclearandcleanduringandaftermaintenance.
Whenliftinganyheavyobject:
1.Ensureyoucanstandsafelywithoutslipping.
2.Distributetheweightoftheobjectequallyacrossbothfeet.
3.Liftslowly.Nevermovesuddenlyortwistwhenyouattempttolift.
4.Liftbystandingorbypushingupwithyourlegmuscles;thisactionremovesthestrainfromthe
musclesinyourback.
Donotattempttoliftanyobjectsthatweighmorethan16kg(35lb)orobjectsthatyouthinkare
tooheavyforyou.
Donotperformanyactionthatwouldcreateahazardforthecustomer,orwouldmakethecomputer
unsafe.
Beforeyoustartthecomputer,ensurethatotherservicerepresentativesandcustomerpersonnelarenot
inapositionthatwouldcreateahazardforthem.
Placeremovedcoversandotherpartsinasafeplace,awayfromallpersonnel,whileyouareservicingthe
computer.
Keepyourtoolcaseawayfromareasthatpeoplemaywalkthroughtoensureno-onetripsoverit.
Donotwearlooseclothingthatcanbetrappedinthemovingpartsofamachine.Ensurethatyoursleeves
arefastenedorrolledupaboveyourelbows.Ifyourhairislong,tieorfastenitback.
Inserttheendsofyournecktieorscarfinsideclothingorfastenitwithanon-conductiveclip,
approximately8centimeters(3inches)fromtheend.
Donotwearjewelry,chains,metal-frameeyeglasses,ormetalfastenersforyourclothing.
Remember:Metalobjectsaregoodelectricalconductors.
Wearsafetyglasseswhenyouare:hammering,drillingsoldering,cuttingwire,attachingsprings,using
solvents,orworkinginanyotherconditionsthatmightbehazardoustoyoureyes.
Afterservice,reinstallallsafetyshields,guards,labels,andgroundwires.Replaceanysafetydevice
thatiswornordefective.
Reattachallcoverscorrectlybeforereturningthecomputertothecustomer.
Electricalsafety
CAUTION:
Electricalcurrentfrompower,telephone,andcommunicationcablescanbehazardous.Toavoid
personalinjuryorequipmentdamage,disconnectanyattachedpowercords,telecommunication
cables,networkcables,andmodemcablesbeforeyouopenthecomputercovers,unlessinstructed
otherwiseintheinstallationandconfigurationprocedures.
©CopyrightLenovo2015
3
Observethefollowingruleswhenworkingonelectricalequipment.
Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoft
materialthatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.Manycustomershaverubber
floormatsneartheirequipmentthatcontainsmallconductivefiberstodecreaseelectrostaticdischarge.
Findtheroomemergencypower-off(EPO)switch,disconnectingswitch,orelectricaloutlet.Ifanelectrical
accidentoccurs,youcanthenoperatetheswitchorunplugthepowercordquickly.
Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltages.
Disconnectallpowerbefore:
Performingamechanicalinspection
Workingnearpowersupplies
RemovingorinstallingFieldReplaceableUnits(FRUs)
Beforeyoustarttoworkonthecomputer,unplugthepowercord.Ifyoucannotunplugit,askthe
customertopower-offtheelectricaloutletthatsuppliespowertothemachineandtolocktheelectrical
outletintheoffposition.
Ifyouneedtoworkonacomputerthathasexposedelectricalcircuits,observethefollowingprecautions:
Ensurethatanotherperson,familiarwiththepower-offcontrols,isnearyou.
Remember:Anotherpersonmustbetheretoswitchoffthepower,ifnecessary.
Useonlyonehandwhenworkingwithpowered-onelectricalequipment;keeptheotherhandinyour
pocketorbehindyourback.
Remember:Theremustbeacompletecircuittocauseelectricalshock.Byobservingtheaboverule,
youmaypreventacurrentfrompassingthroughyourbody.
Whenusingatester,setthecontrolscorrectlyandusetheapprovedprobeleadsandaccessoriesfor
thattester.
Standonsuitablerubbermats(obtainedlocally,ifnecessary)toinsulateyoufromgroundssuchas
metalfloorstripsandmachineframes.
Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages;theseinstructionsarein
thesafetysectionsofthemaintenanceinformation.Useextremecarewhenmeasuringhighvoltages.
Regularlyinspectandmaintainyourelectricalhandtoolstoensuretheyaresafetouse.
Donotusewornorbrokentoolsandtesters.
Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkthatithasbeenpoweredoff.
Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesofthesehazardsarewetfloors,
non-groundedpowerextensioncables,conditionsthatmaycauseorallowpowersurges,andmissing
safetygrounds.
Donottouchliveelectricalcircuitswiththereflectivesurfaceofaplasticdentalmirror.Thissurfaceis
conductive,andtouchingalivecircuitcancausepersonalinjuryanddamagetothecomputer.
Donotservicethefollowingpartswiththepoweronwhentheyareremovedfromtheirnormaloperating
positionsinacomputer:
Powersupplyunits
Pumps
Blowersandfans
Motorgenerators
andsimilarunits.(Thispracticeensurescorrectgroundingoftheunits.)
Ifanelectricalaccidentoccurs:
Usecaution;donotbecomeavictimyourself.
4ideacentreAll-In-One700HardwareMaintenanceManual
Switchoffpower.
Sendanotherpersontogetmedicalaid.
Safetyinspectionguide
Theintentofthisinspectionguideistoassistyouinidentifyingpotentialhazardsposedbytheseproducts.
Eachcomputer,asitwasdesignedandbuilt,hadrequiredsafetyitemsinstalledtoprotectusersand
servicepersonnelfrominjury.Thisguideaddressesonlythoseitems.However,goodjudgmentshouldbe
usedtoidentifypotentialsafetyhazardsduetoattachmentoffeaturesoroptionsnotcoveredbythis
inspectionguide.
Ifanyhazardsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeandwhetheryou
cancontinuewithoutfirstresolvingtheproblem.
Considerthefollowingitemsandthesafetyhazardstheypresent:
Electricalhazards,especiallyprimarypower(primaryvoltageontheframecancauseseriousorfatal
electricalshock).
Explosivehazards,suchasadamagedCRTfaceorbulgingcapacitor
Mechanicalhazards,suchaslooseormissinghardware
Theguideconsistsofaseriesofstepspresentedasachecklist.Beginthecheckswiththepoweroff,and
thepowercorddisconnected.
Checklist:
1.Checkexteriorcoversfordamage(loose,broken,orsharpedges).
2.Power-offthecomputer.Disconnectthepowercord.
3.Checkthepowercordfor:
a.Athird-wiregroundconnectoringoodcondition.Useametertomeasurethird-wireground
continuityfor0.1ohmorlessbetweentheexternalgroundpinandframeground.
b.Thepowercordshouldbetheappropriatetypeasspecifiedinthepartslistings.
c.Insulationmustnotbefrayedorworn.
4.Removethecover.
5.Checkforanyobviousalterations.Usegoodjudgmentastothesafetyofanyalterations.
6.Checkinsidetheunitforanyobvioushazards,suchasmetalfilings,contamination,waterorother
liquids,orsignsoffireorsmokedamage.
7.Checkforworn,frayed,orpinchedcables.
8.Checkthatthepower-supplycoverfasteners(screwsorrivets)havenotbeenremovedortamperedwith.
Handlingelectrostaticdischarge-sensitivedevices
Anycomputerpartcontainingtransistorsorintegratedcircuits(ICs)shouldbeconsideredsensitiveto
electrostaticdischarge(ESD).ESDdamagecanoccurwhenthereisadifferenceinchargebetweenobjects.
ProtectagainstESDdamagebyequalizingthechargesothatthecomputer,thepart,theworkmat,andthe
personhandlingthepartareallatthesamecharge.
Notes:
1.Useproduct-specificESDprocedureswhentheyexceedtherequirementsnotedhere.
2.MakesurethattheESDprotectivedevicesyouusehavebeencertified(ISO9000)asfullyeffective.
WhenhandlingESD-sensitiveparts:
Chapter2.Safetyinformation5
Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.
Avoidcontactwithotherpeoplewhilehandlingthepart.
Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.
Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeandretainsachargeeven
whenyouarewearingawriststrap.
Usetheblacksideofagroundedworkmattoprovideastatic-freeworksurface.Thematisespecially
usefulwhenhandlingESD-sensitivedevices.
Selectagroundingsystem,suchasthoselistedbelow,toprovideprotectionthatmeetsthespecific
servicerequirement.
Note:TheuseofagroundingsystemisdesirablebutnotrequiredtoprotectagainstESDdamage.
AttachtheESDgroundcliptoanyframeground,groundbraid,orgreen-wireground.
UseanESDcommongroundorreferencepointwhenworkingonadouble-insulatedor
battery-operatedsystem.Youcanusecoaxorconnector-outsideshellsonthesesystems.
Usetheroundground-prongoftheACplugonAC-operatedcomputers.
Groundingrequirements
Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
groundingoftheelectricaloutletcanbeverifiedbyacertifiedelectrician.
Safetynotices
TheCAUTIONandDANGERsafetynoticesinthissectionareprovidedinthelanguageofEnglish.
DANGER
Electricalcurrentfrompower,telephoneandcommunicationcablesishazardous.
Toavoidashockhazard:
Donotconnectordisconnectanycablesorperforminstallation,maintenance,orreconfiguration
ofthisproductduringanelectricalstorm.
Connectallpowercordstoaproperlywiredandgroundedelectricaloutlet.
Connectanyequipmentthatwillbeattachedtothisproducttoaproperlywiredoutlet.
Whenpossible,useonehandonlytoconnectordisconnectsignalcables.
Neverturnonanyequipmentwhenthereisevidenceoffire,water,orstructuraldamage.
Disconnecttheattachedpowercords,telecommunicationscables,networkcables,andmodem
cablesbeforeyouopenthedevicecovers,unlessinstructedotherwiseintheinstallationand
configurationprocedures.
Connectanddisconnectcablesasdescribedinthefollowingtablewheninstalling,moving,or
openingcoversonthisproductorattacheddevices.
6ideacentreAll-In-One700HardwareMaintenanceManual
ToConnect
ToDisconnect
1.TurneverythingOFF .
2.First,attachallcablestodevices.
3.Attachsignalcablestoconnectors.
4.Attachpowercordstooutlet.
5.TurndeviceON.
1.TurneverythingOFF .
2.First,removepowercordsfromoutlets.
3.Removesignalcablesfromconnectors.
4.Removeallcablesfromdevices.
CAUTION:
Whenreplacingthelithiumbattery,useonlyPartNumber45C1566oranequivalenttypebattery
recommendedbythemanufacturer.Ifyoursystemhasamodulecontainingalithiumbattery,replace
itonlywiththesamemoduletypemadebythesamemanufacturer.Thebatterycontainslithiumand
canexplodeifnotproperlyused,handled,ordisposedof.
Donot:
Throwintoorimmerseinwater
Heattomorethan100°C(212°F)
Repairordisassemble
Disposeofthebatteryasrequiredbylocalordinancesorregulations.
CAUTION:
Whenlaserproducts(suchasCD-ROMs,DVD-ROMdrives,fiberopticdevices,ortransmitters)are
installed,notethefollowing:
Donotremovethecovers.Removingthecoversofthelaserproductcouldresultinexposureto
hazardouslaserradiation.Therearenoserviceablepartsinsidethedevice.
Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespecifiedherein
mightresultinhazardousradiationexposure.
DANGER
SomelaserproductscontainanembeddedClass3AorClass3Blaserdiode.Notethefollowing:
Thesediodesemitradiationwhenopen.Donotstareintothebeam,donotviewdirectlywith
opticalinstruments,andavoiddirectexposuretothebeam.
Chapter2.Safetyinformation7
≥18kg(37lbs)≥32kg(70.5lbs)≥55kg(121.2lbs)
CAUTION:
Usesafepracticeswhenlifting.
CAUTION:
Thepowercontrolbuttononthedeviceandthepowerswitchonthepowersupplydonotturnoff
theelectricalcurrentsuppliedtothedevice.Thedevicealsomighthavemorethanonepower
cord.Toremoveallelectricalcurrentfromthedevice,ensurethatallpowercordsaredisconnected
fromthepowersource.
1
2
CAUTION:
Donotplaceanyobjectweighingmorethan82kg(180lbs.)ontopofrack-mounteddevices.
8ideacentreAll-In-One700HardwareMaintenanceManual
Chapter3.Generalinformation
Thischapterprovidesgeneralinformationthatappliestoallcomputermodelscoveredbythismanual.
Specifications
Thissectionliststhephysicalspecificationsforyourcomputer.
Thissectionliststhephysicalspecificationsforyourcomputer.
Thissectionliststhephysicalspecifications.
Environment
Airtemperature:
Operating:10°to35°C
Transit:-20°to55°C
Humidity:
Operating:35%to80%
Transit:20%to90%(40°C)
Altitude:86KPato106KPa
Electricalinput:
Inputvoltage:90V-264V(AC)
Inputfrequency:47Hz-63Hz
©CopyrightLenovo2015
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10ideacentreAll-In-One700HardwareMaintenanceManual
Chapter4.GeneralCheckout
Attention:Thedrivesinthecomputeryouareservicingmighthavebeenrearrangedorthedrivestartup
sequencemayhavebeenchanged.Beextremelycarefulduringwriteoperationssuchascopying,saving,or
formatting.Dataorprogramscanbeoverwrittenifyouselectanincorrectdrive.
Generalerrormessagesappearifaproblemorconflictisfoundbyanapplication,theoperatingsystem,or
both.Foranexplanationofthesemessages,refertotheinformationsuppliedwiththatsoftwarepackage.
Usethefollowingproceduretohelpdeterminethecauseoftheproblem:
1.Power-offthecomputerandallexternaldevices.
2.Checkallcablesandpowercords.
3.Setalldisplaycontrolstothemiddleposition.
4.Power-onallexternaldevices.
5.Power-onthecomputer.
Lookfordisplayederrorcodes.
Lookforreadableinstructionsoramainmenuonthedisplay.
Ifyoudidnotreceivethecorrectresponse,proceedtostep6.
Ifyoudidreceivethecorrectresponse,proceedtostep7.
6.Ifoneofthefollowinghappens,followtheinstructiongiven:
IfthecomputerdisplaysaPOSTerror,goto“POSTerrorcodes” .
Ifthecomputerhangsandnoerrorisdisplayed,continueatstep7.
7.Iftheteststopsandyoucannotcontinue,replacethelastdevicetested.
©CopyrightLenovo2015
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12ideacentreAll-In-One700HardwareMaintenanceManual
Chapter5.UsingtheSetupUtility
TheSetupUtilityprogramisusedtoviewandchangetheconfigurationsettingsofyourcomputer,regardless
ofwhichoperatingsystemyouareusing.However,theoperatingsystemsettingsmightoverrideanysimilar
settingsintheSetupUtilityprogram.
StartingtheLenovoBIOSSetupUtilityprogram
TostarttheLenovoBIOSSetupUtilityprogram,dothefollowing:
1.Ifyourcomputerisalreadyonwhenyoustartthisprocedure,shutdowntheoperatingsystemand
turnoffthecomputer.
2.PressandholdtheF1key,andthenturnonthecomputer.WhentheLenovoBIOSSetupUtilityprogram
isdisplayed,releasetheF1key.
Note:IfaPower-OnPasswordoranAdministratorPasswordhasbeenset,theSetupUtilityprogrammenu
willnotbedisplayeduntilyoutypeyourpassword.Formoreinformation,see“Usingpasswords.
Viewingandchangingsettings
SystemconfigurationoptionsarelistedintheLenovoBIOSSetupUtilityprogrammenu.Tovieworchange
settings,see“StartingtheSetupUtilityprogram.
YoumustusethekeyboardwhenusingtheLenovoBIOSSetupUtilitymenu.Thekeysusedtoperform
varioustasksaredisplayedonthebottomofeachscreen.
Usingpasswords
YoucanusetheLenovoBIOSSetupUtilityprogramtosetpasswordstopreventunauthorizedpersons
fromgainingaccesstoyourcomputeranddata.See“StartingtheSetupUtilityprogram.Thefollowing
typesofpasswordsareavailable:
AdministratorPassword
Power-OnPassword
Youdonothavetosetanypasswordstouseyourcomputer.However,ifyoudecidetosetpasswords,read
thefollowingsections.
Passwordconsiderations
Apasswordcanbeanycombinationoflettersandnumbersupto16characters(a-zand0-9).Forsecurity
reasons,itisagoodideatouseastrongpasswordthatcannotbeeasilycompromised.Wesuggestthat
passwordsshouldfollowtheserules:
Forastrongpassword,use7-16charactersandamixoflettersandnumbers.
Donotuseyournameoryourusername.
Donotuseacommonwordoracommonname.
Usesomethingsignificantlydifferentfromyourpreviouspassword.
Attention:AdministratorandPower-Onpasswordsarenotcasesensitive.
©CopyrightLenovo2015
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AdministratorPassword
SettinganAdministratorPassworddetersunauthorizedpersonsfromchangingconfigurationsettings.Y ou
mightwanttosetanAdministratorPasswordifyouareresponsibleformaintainingthesettingsofseveral
computers.
AfteryousetanAdministratorPassword,apasswordpromptisdisplayedeverytimeyouaccesstheLenovo
BIOSSetupUtilityprogram.
IfboththeAdministratorandPower-OnPasswordareset,youcantypeeitherpassword.However,youmust
useyourAdministratorPasswordtochangeanyconfigurationsettings.
Setting,changing,ordeletinganAdministratorpassword
TosetanAdministratorPassword,dothefollowing:
Note:Apasswordcanbeanycombinationoflettersandnumbersupto16characters(a-zand0-9).For
moreinformation,see“Passwordconsiderations”onpage13.
1.StarttheLenovoBIOSSetupUtilityprogram(see“StartingtheLenovoBIOSSetupUtilityprogram”on
page13).
2.FromtheSecuritymenu,selectSetAdministratorPasswordandpresstheEnterkey.
3.Thepassworddialogboxwillbedisplayed.Typethepassword,andthenpresstheEnterkey.
4.Re-typethepasswordtoconfirm,andthenpresstheEnterkey.Ifyoutypedthepasswordcorrectly,
thepasswordwillbeinstalled.
TochangeanAdministratorPassword,dothefollowing:
1.StarttheLenovoBIOSSetupUtilityprogram(see“StartingtheLenovoBIOSSetupUtilityprogram”on
page13).
2.FromtheSecuritymenu,selectSetAdministratorPasswordandpresstheEnterkey.
3.Thepassworddialogboxwillbedisplayed.Typethecurrentpassword,andthenpresstheEnterkey.
4.Typethenewpassword,andthenpresstheEnterkey.Re-typethepasswordtoconfirmthenew
password.Ifyoutypedthenewpasswordcorrectly,thenewpasswordwillbeinstalled.ASetup
Noticedconfirmingthatchangeshavebeensavedwillbedisplayed.
TodeleteapreviouslysetAdministratorPassword,dothefollowing:
1.FromtheSecuritymenu,selectSetAdministratorPasswordandpresstheEnterkey.
2.Thepassworddialogboxwillbedisplayed.TypethecurrentpasswordandpresstheEnterkey.
3.TodeleteanAdministratorPassword,leaveeachnewpasswordlineitemblank,andthenpressthe
Enterkey.ASetupNoticeconfirmingthatchangeshavebeensavedwillbedisplayed.
4.ReturntotheLenovoBIOSSetupUtilityprogrammenuandselecttheExitoption.
5.SelectSavechangesandExitfromthemenu.
Power-OnPassword
WhenaPower-OnPasswordisset,youcannotstarttheLenovoBIOSSetupUtilityprogramuntilavalid
passwordistypedfromthekeyboard.
Setting,changing,ordeletingaPower-OnPassword
Note:Apasswordcanbeanycombinationoflettersandnumbersupto16characters(a-zand0-9).
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Lenovo AIO 700 Series Hardware Maintenance Manual

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